PhysicsLight: refractionWAEC
Find the critical angle for water of refractive index 4/3.
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Answer: C. 48.6°
sin c = 1/n = 3/4 = 0.75, so c ≈ 48.6°.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.
Physics · Light: refraction
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